- 作者: 張宗仁 ; 林素卿 ; 蔡錦娥 等
- 作者服務機構: 中山大學化學系
- 中文摘要: Al/sub 2/X/sub 6/Mg.lbrak.N(C/sub 2/H/sub 5/)/sub 2/.rbrak./sub 2/(X=Cl, Br), Al/sub 2/X/sub 4/(NR/sub 2/)/sub 2/(R=C/sub 2/H/sub 5/, i-C/sub 3/H/sub 7/, X=Cl, Br), AlX/sub 3/HNR/sub 2/ (R=i-C/sub 3/H/sub 7/) were characterized by means of mass, infrared, and /sup 1/H,/sup 13/C and /sup 27/Al NMR spectra and elemental analyses. The crystal structures of two aluminum complexes, Al/sub 2/Cl/sub 4/.lbrak.N(C/sub 2/H/sub 5/)/sub 2/.rbrak./sub 2/ and AlCl/sub 3/HN(i-C/sub 3/H/sub 7/)/sub 2/, were determined by means of single-crystal X-ray diffraction. Al/sub 2/Cl/sub 4/.lbrak.N(C/sub 2/H/sub 5/)/sub 2/.rbrak./sub 2/ crystallized in space group Pmcn with unit-cell dimensions a=10.577(2), b=11.799(3) and c=13.219(4).ANG.; structure analysis resulted in a final R=0.043 for 999 observations. AlCl/sub 3/HN(i-C/sub 3/H/sub 7/)/sub 2/ crystallized in space group Pcab with unit-cell dimensions a=10.545(7), b=14.630(4) and c=15.255(2).ANG.; structure analysis resulted in a final R=0.041 for 1054 observations. The Al atoms in both structures show a tetrahedral bonding geometry with Al-N lengths in the range 1.927(3)-1.956(4)A, and Al-Cl lengths in the range 2.092(3)-2.128(3).ANG.. The four-membered ring of Al/sub 2/N/sub 2/ in Al/sub 2/ Cl/sub 4/.lbrak.N(C/sub 2/H/sub 5/)/sub 2/.rbrak./sub 2/ is almost planar.
- 英文摘要: --
- 中文關鍵字: Synthesis; Mg; Al; Multinuclear Bridged Complex; Aluminum Trihalide; Nmr (Nuclear Magnetic Resonance); Single-Crystal X-Ray Diffraction
- 英文關鍵字: 合成;鎂;鋁;多核架橋錯合物;三鹵化鋁;核磁共振;單晶X光繞射